similar effects of nitrate and nitrite in reducing root ethanol production

nitrogen · yield · Glycine max (soybean)Positive and negative results

317 papers in the same direction as this claim · 91 in the opposite direction · 7 reporting no difference from an alternative

1. negative
   Soybeans relying only on atmospheric nitrogen yielded less than half as much seed as those using nitrate and atmospheric nitrogen in hydroponics.

   Soil and Symbiotic Nitrogen Requirements for Optimum Soybean Production¹ · 1974 · compared with plants utilizing both nitrate and atmospheric nitrogen

   Opposite direction

2. no effect
   Applied nitrogen did not significantly affect grain yield; the observed increase was 39 kg ha−1.

   Nitrogen Application to Soybean at Early Reproductive Development · 2005 · compared with no‐N control

   Opposite direction

3. negative
   Nitrogen stress during seed development reduced soybean final seed size.

   The Effect of Source-Sink Alterations on Soybean Seed Growth* · 1985

   Opposite direction

4. no effect
   Soil-applied N or foliar-applied B did not increase soybean seed yield at any rate or application stage.

   Soybean Yield Response to Reproductive Stage Soil‐Applied Nitrogen and Foliar‐Applied Boron · 2001

   Opposite direction

5. no effect
   With adequate N, nodulated and non-nodulated soybean had similar seed yields.

   Dry Matter Accumulation in Soybean (Glycine max (L) Merrill) Plants As Influenced by N, P, and K Fertilization¹ · 1971 · compared with nodulated and non‐nodulated soybeans

   Opposite direction

6. no effect
   Nitrogen at rates up to 360 kg/ha added for the preceding year's corn had no effect on soybean yields.

   Soybean Yields with Direct and Residual Nitrogen Fertilization¹ · 1973

   Opposite direction

7. negative
   K-polyphosphate mix foliar spraying reduced soybean yield by 10.9% on average over two sites.

   Foliage Injury, Nutrient Intake, and Yield of Soybeans as Influenced by Foliar Fertilization¹ · 1980

   Opposite direction

8. no effect
   Straw treatment, nitrogen timing, and nitrogen rate did not significantly differ in soybean yield.

   Effect of Nitrogen on Nodulation and Yield of Irrigated Soybeans¹ · 1971

   Opposite direction

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